公开(公告)号：US10276171B2

公开(公告)日：2019-04-30

申请号：US15651764

申请日：2017-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-young Kim ,  Eun-mi Oh

IPC: G10L19/04 ,  G10L19/002 ,  G10L19/028 ,  G10L19/032 ,  G10L19/02

Abstract: A noise filling method is provided that includes detecting a frequency band including a part encoded to 0 from a spectrum obtained by decoding a bitstream; generating a noise component for the detected frequency band; and adjusting energy of the frequency band in which the noise component is generated and filled by using energy of the noise component and energy of the frequency band including the part encoded to 0.

公开(公告)号：US10224051B2

公开(公告)日：2019-03-05

申请号：US15488103

申请日：2017-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/12 ,  G10L19/06 ,  G10L19/18 ,  G10L19/032 ,  G10L19/038 ,  G10L19/04 ,  G10L19/00

Abstract: A quantizing apparatus is provided that includes a quantization path determiner that determines a path from a first path not using inter-frame prediction and a second path using the inter-frame prediction, as a quantization path of an input signal, based on a criterion before quantization of the input signal; a first quantizer that quantizes the input signal, if the first path is determined as the quantization path of the input signal; and a second quantizer that quantizes the input signal, if the second path is determined as the quantization path of the input signal.

公开(公告)号：US10194151B2

公开(公告)日：2019-01-29

申请号：US15500292

申请日：2015-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Ki-hyun Choo ,  Eun-mi Oh

IPC: H04N19/124 ,  H04N19/196 ,  H04N19/40 ,  G10L19/032 ,  G10L19/16 ,  H03M13/05 ,  H03M13/15 ,  H03M13/31 ,  G10L19/24 ,  G10L19/02

Abstract: A spectrum coding method includes quantizing spectral data of a current band based on a first quantization scheme, generating a lower bit of the current band using the spectral data and the quantized spectral data, quantizing a sequence of lower bits including the lower bit of the current band based on a second quantization scheme, and generating a bitstream based on a upper bit excluding N bits, where N is 1 or greater, from the quantized spectral data and the quantized sequence of lower bits.

公开(公告)号：US10170127B2

公开(公告)日：2019-01-01

申请号：US15324922

申请日：2015-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyung-hun Jung ,  Eun-mi Oh ,  Jong-hoon Jeong ,  Seon-ho Hwang

IPC: G10L19/022 ,  H04L29/06 ,  G10L19/005

Abstract: A method and apparatus for transmitting multimedia data are provided. A first device, which provides an audio signal to a second device, includes: a control unit that divides an audio signal input to the first device into a plurality of audio frames, compares a current audio frame among the plurality of audio frames with the at least one previous audio frame prestored in the memory of the first device, and selects one of the prestored previous audio frames based on similarity of the prestored previous audio frame and the current audio frame; and a communication unit that transmits an identification value of the selected previous audio frame to the second device.

公开(公告)号：US10115407B2

公开(公告)日：2018-10-30

申请号：US15333684

申请日：2016-10-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Lei Miao ,  Eun-mi Oh

IPC: G10L19/14 ,  G10L19/06 ,  G10L19/02 ,  G10L21/038 ,  G10L19/04 ,  G10L19/07 ,  G10L25/12 ,  G10L25/90 ,  G10L19/16 ,  G10L25/21

Abstract: Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal.

公开(公告)号：US10109283B2

公开(公告)日：2018-10-23

申请号：US15714428

申请日：2017-09-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-young Kim ,  Anton Victorovich Porov ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/002 ,  G10L19/028 ,  G10L19/032 ,  G10L19/02

Abstract: A bit allocating method is provided that includes determining the allocated number of bits in decimal point units based on each frequency band so that a Signal-to-Noise Ratio (SNR) of a spectrum existing in a predetermined frequency band is maximized within a range of the allowable number of bits for a given frame; and adjusting the allocated number of bits based on each frequency band.

公开(公告)号：US09734837B2

公开(公告)日：2017-08-15

申请号：US13645834

申请日：2012-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-mi Oh ,  Ho-sang Sung ,  Ki-hyun Choo ,  Kang-eun Lee

IPC: G10L19/24

CPC classification number: G10L19/24

Abstract: A method, medium, and system scalably encoding/decoding audio/speech. The method includes splitting an input signal into a low frequency band signal that is lower than a predetermined frequency and a high frequency band signal that is higher than the predetermined frequency, scalably encoding the split low frequency band signal into a core layer and one or more extension layers and then decoding the encoded core layer and the encoded extension layers, generating an error signal by using the split low frequency band signal and a decoded signal of the encoded core layer and the encoded extension layers, and encoding the error signal and the high frequency band signal into a signal-to-noise ratio (SNR) enhancement layer and a bandwidth extension layer.

公开(公告)号：US09626980B2

公开(公告)日：2017-04-18

申请号：US14624948

申请日：2015-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/032 ,  G10L19/06 ,  G10L19/18 ,  H04N19/159 ,  H04N19/124 ,  G10L19/07 ,  G10L19/22 ,  H04N19/137 ,  H04N19/164

CPC classification number: G10L19/038 ,  G10L19/032 ,  G10L19/06 ,  G10L19/07 ,  G10L19/167 ,  G10L19/18 ,  G10L19/22 ,  H04N19/124 ,  H04N19/137 ,  H04N19/159 ,  H04N19/164

Abstract: A quantizing method is provided that includes quantizing an input signal by selecting one of a first quantization scheme not using an inter-frame prediction and a second quantization scheme using the inter-frame prediction, in consideration of one or more of a prediction mode, a predictive error and a transmission channel state.

公开(公告)号：US09564142B2

公开(公告)日：2017-02-07

申请号：US14881142

申请日：2015-10-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC: H04B15/00 ,  G10L19/028 ,  G10L19/02 ,  G10K11/00

CPC classification number: G10L19/028 ,  G10K11/002 ,  G10L19/0204

Abstract: Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

Abstract translation: 提供了一种用于对音频信号进行编码/解码的方法和装置。 不用于输出不用于输出噪声分量的重要频谱分量和子频带附近的噪声分量的部分被确定为编码或解码，使得音频信号的编码和解码效率提高，声音质量 可以使用较少的位来改进。

公开(公告)号：US09424851B2

公开(公告)日：2016-08-23

申请号：US14272643

申请日：2014-05-08

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Ho-sang Sung ,  Kang-eun Lee ,  Jung-hoe Kim ,  Eun-mi Oh

IPC: G06F11/00 ,  H04L1/00 ,  G10L19/005

CPC classification number: G10L19/005 ,  G10L19/07 ,  G10L19/083 ,  G10L19/167 ,  H04L1/0045

Abstract: A frame error concealment method and apparatus and a decoding method and apparatus using the same. The frame error concealment method includes setting a concealment method to conceal an error based on one or more signal characteristics of an error frame having the error and concealing the error using the set concealment method.

Abstract translation: 一种帧错误隐藏方法和装置及其使用方法和装置。 帧错误隐藏方法包括设置隐藏方法以基于具有错误的错误帧的一个或多个信号特征来隐藏错误，并且使用所设置的隐藏方法隐藏错误。